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Java 9 Tutorial

Java 9 Tutorial

A focused handbook for learning Java 9 and understanding its modular system. This guide explains the Java Platform Module System (JPMS), improved APIs, and performance enhancements introduced to make large Java applications more maintainable and scalable.

1 Module

11 Lessons

English

0 Hr

Reading Plan

MODULE 1

Java 9 Features

11 mins

Java Modules

1 min

Java REPL (JSHELL)

1 min

Interface Private Methods

1 min

Date API Improvement

1 min

Process API Improvement

1 min

Underscore Keyword

1 min

Anonymous Inner Class

1 min

Stream API Improvement

1 min

Collection Factory Methods

1 min

Try-with-resources Statement

1 min

SafeVarargs Annotation

1 min

Contributors

Lukesh

Java 9 Tutorial

This handbook introduces Java 9 features with an emphasis on modular programming. You’ll learn how modules organize large applications, how JShell improves experimentation, and how Java 9 enhances performance and maintainability.

Why This Handbook Matters

Java 9 restructured the Java platform with modules. Understanding this shift is crucial for working with large-scale Java systems and modern JDKs.

Ideal Learners for This Handbook

Java developers working on large codebases, learners exploring Java internals, and professionals upgrading legacy applications.

Prerequisites

This course is suitable for:

Solid understanding of Java fundamentals
Familiarity with packages and classpath
Experience using Java 8 features
Basic understanding of application structure

Run & Test your Code with our very own IDE that supports 16 languages

Open IDE

1 Module

11 Lessons

English

0 Hr

Contributors

Lukesh

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